Oil cup



Oct. 26 1926.I

R. A. LIGHT ET AL OIL CUP Fled Sept. 25, 1923 and f4 r immediately above the valve seat B2.

Patented Oct. 26, 1926.

UNITED STATES PATENT OFFICE.

RALPH A. LIGHT AND JOSEPH W. PRICE, JR., OF PHILADELPHIA, PENNSYLVANIA, A- SIGNORS TO THE 'UNITED STATES METALLIC PACKING COMPANY, OF PHILADEL- PI-IIA, PENNSYLVANIA, A CORPORATION 0F PENNSYLVANIA.

OIL CUP.

Application filed September 25, 1923. Serial No. 664,678.

(')ur invention relates to the construction ol oil cups and particularly to the type of cups in which the cup proper is cast around a perforated shank, preferably of steel, by means of which shank it is attached to a machine and through which shank it delivers oil to the part to be lubricated. The object of our invention is to generally improve the yconstruction of cups of this kind particularly with respect to the construction and mode of attachment to the cover of the oil cup and with regard to the combination of the shank with the cast portion of the cup. lIhe nature of our improvements will be best understood as described in connection with the drawings which illustrate an oil cup embodying our improvements and in which Figure 1 is a top view of the oil cup with the wings of the cover in position to cover the filling openings.

Figure 2 is a cross section on the line 2-2 of Fig. l.

Figure 3 is a view of the bottom of the oil cup.

Figure 4j is a side elevation of the oil cup shown partly in section on the line 4-4 of Fig. l.

Figure 5 is a view similar to Fig. l but showing` the cover rotated to the position in which the filling openings are accessible, and

Figure 6 is a sectional view taken through a portion of the lead, taken on the line 6-6 of Fig. l.

A is the shank of the oil cup preferably made of steel and externally threaded at its lower end which projects below the cup. This shank is longitudinally perforated., the perforation including an internally threaded portion B at the top of the shank, an intermediate portion B of smaller diameter having a valve seat B2 at its top and mergingA into the portion indicated at B3. The shank is transversely perforated, as indicated at C, D indicates a lateral projecting flange of angular outline formed on the portion of the shank to which the cup proper is cast, and E indicates a similar projecting flange formed lower down on the shank and having a face E which. projects below the cast cup and is adapted to rest upon a portion of the machine into which the threaded portion of the shank screws. F is the cast portion of the cup, the bottom portion F of which is f the upper surfaces of which lie in the sui`` face of a cone. G indicates the cover for the oil cup which is formed with two projecting arms G extending from a central depressed boss G2 which fits in the seat F and is formed with an inwardly projecting iiange G3 which serves as the seat for a spring. The wings or arms G of the cover which slope downward to fit on the rims surrounding the filling holes are formed with depressions G4 which taper to a shou1- der G5 and they are also formed with upwardly extending lugs G6. VH is a spindle carrying a valve H3 at its lower end and threaded, as indicated at H', to screw into the threaded perforation I). At the top of the spindle is formed an outwardly extending flange H4 and an upwardly extending portion, indicated at H5. I indicates a spring seated on the top of the spindle B and abutting against a shoulder and the upper portion of the spindle H. I is a spring seated on the shoulder G3 of the cover and abutting against the flange H4 of the spindle. The function of this spring is to press the-cover downward on to the top of the cup.

Then it is desired to fill the cup with oil the cover is turned to the position shown in Fig. 5, the tapered depression G4 riding readily over the edges of the filling openings. A rotation of the cover in the oppo site direction is prevented by the engagement of the shoulder with the edges of the rim F6 surrounding the filling openings so that the cover can only be rotated in one direction, and this is important as it protects the cover from being rotated iir a direction which would tend to unscrew the valve spindle and change the adjustment of the valve. The sloping form of the cover prevents the accumulation of Water over he cup.

Having now described our invention, what we claim as new and desire to secure by Letters Patent, is:

l. A cast inetal oil cup having a perforated steel shank about which this cup is cast and which extends below the cup and upward into the cup, said shank having a thread formed at the top of the perforation for a valve spindle, said cup having a top on which the cover tits and which is formed with a downwardly centrally located bearing for a cylindrical boss of the cover and with filling openings lying outside of said bearing, in combination with a rotatable cover having a depressed cup shaped boss extending down into the centrally located bearing in the top and adapted to forin a 20 seat and container for a coiled spring, said cover having laterally extending wings adapted to cover and uncover the filling openings in the top of the cup as the cover is rotated, means for preventing the rotation of the cover in a backward direction, a valve stein extending through the boss of the cover and screwing into the threaded perforation of the steel shank, said stein having a flange at its top, and a spring seated in the cup shaped boss of the cover o and abutted against the fiange of the valve stein.

2. An oil cup having the features of claim l and further characterized by having its steel sha-nk fornied with a laterally ext-ending seat portion extending below the cast cup portion of the structure.

RALPH A. LIGHT. JOSEPH lV. PRICE, JR. 

